public void Sub76Test()
{
var input = "1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12";
_parser.Setup(a => a.ParseIntegers(input)).Returns(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });
var result = _target.Compute(input);
Assert.AreEqual("1-2-3-4-5-6-7-8-9-10-11-12 = -76", result);
}
public void Composed(double value)
{
Terminal x = new Terminal("x0");
Terminal one = new Terminal("1");
Addition a2 = new Addition(one, one); //y
Mult aa = new Mult(a2, a2); //y^2
Mult xx = new Mult(x, x); //x^2
Subtraction s = new Subtraction(xx, aa); // x^2 - y^2
Addition xay = new Addition(x, a2); // x + y
Subtraction xsy = new Subtraction(x, a2); // x - y
Mult f = new Mult(xay, xsy); // (x + y)(x - y)
Assert.True(f.Compute(value) == (value + 2) * (value - 2));
Assert.True(s.Compute(value) == (value * value) - 4);
Assert.True(s.Compute(value) == f.Compute(value)); //(x + y)(x - y) == (x^2 - y^2)
}
public void Variables(double x, double y)
{
Terminal op1 = new Terminal("x0");
Terminal op2 = new Terminal("x1");
Mult m = new Mult(op1, op2);
Div d = new Div(op1, op2);
Addition a = new Addition(op1, op2);
Subtraction s = new Subtraction(op1, op2);
Assert.True(m.Compute(x, y) == x * y);
Assert.True(d.Compute(x, y) == x / y);
Assert.True(a.Compute(x, y) == x + y);
Assert.True(s.Compute(x, y) == x - y);
}
public void Constants(string x1, string x2, double r1, double r2)
{
Terminal op1 = new Terminal(x1);
Terminal op2 = new Terminal(x2);
Mult m = new Mult(op1, op2);
Div d = new Div(op1, op2);
Addition a = new Addition(op1, op2);
Subtraction s = new Subtraction(op1, op2);
Assert.True(m.Compute(0) == r1 * r2);
Assert.True(a.Compute(0) == r1 + r2);
Assert.True(s.Compute(0) == r1 - r2);
Assert.True(d.Compute(0) == r1 / r2);
}